Defined in header <fkYAML/node.hpp>

fkyaml::basic_node::is_scalar

bool is_scalar() const noexcept;

Tests whether the node value type is one of the followings:
* node_t::NULL_OBJECT * node_t::BOOLEAN * node_t::INTEGER * node_t::FLOAT_NUMBER * node_t::STRING

Return Value

true if the type is a scalar type, false otherwise.

Example

#include <iomanip>
#include <iostream>
#include <fkYAML/node.hpp>

int main() {
    // create YAML nodes.
    fkyaml::node null_node;
    fkyaml::node boolean_node = true;
    fkyaml::node integer_node = 256;
    fkyaml::node float_node = 3.14;
    fkyaml::node string_node = "Hello, world!";

    // check if the nodes are a scalar by calling is_scalar()
    std::cout << std::boolalpha;
    std::cout << null_node.is_scalar() << std::endl;
    std::cout << boolean_node.is_scalar() << std::endl;
    std::cout << integer_node.is_scalar() << std::endl;
    std::cout << float_node.is_scalar() << std::endl;
    std::cout << string_node.is_scalar() << std::endl;

    return 0;
}

output:

true
true
true
true
true

See Also

• node_t